港股早评：三大指数低开，科技股弱势，AI应用概念股活跃，中国中免开涨2.8%

Core Viewpoint - The article highlights the impact of tariff fears and geopolitical tensions on global markets, leading to a decline in European stocks and a slight drop in Hong Kong indices [1] Group 1: Market Performance - US markets were closed overnight, while European stocks experienced significant declines [1] - Hong Kong's three major indices opened slightly lower, with the Hang Seng Index down 0.07%, the National Index down 0.16%, and the Hang Seng Tech Index down 0.22% [1] Group 2: Company Performance - Major technology stocks showed weakness, with Baidu falling over 2%, and Tencent and Xiaomi both declining more than 1.2% [1] - AI application concept stocks saw renewed activity, with Zhihui rising 3.6% [1] - New consumption concept stocks collectively increased, with Pop Mart rising over 5%, and Hu Shang Ayi and China Duty Free both up 2% and 2.8% respectively [1] - Real estate stocks mostly declined, with Country Garden down 4.6% and heavy machinery stock China National Heavy Duty Truck Group falling nearly 5% [1]